Concepedia

Extracellular Biosynthesis of Bimetallic Au–Ag Alloy Nanoparticles

Satyajyoti Senapati, Absar Ahmad, M. Islam Khan, Murali Sastry, Rajiv Kumar

Small · 2005 · 489 citations · 40 references

DOI

Concepts

Abstract

The exposure of a mixture of 1 mM HAuCl4 and 1 mM AgNO3 solutions to different amounts of fungal biomass (Fusarium oxysporum) results in the formation of highly stable Au–Ag alloy nanoparticles with dimensions of 8–14 nm depending on metal molar fraction (see image). The amount of cofactor NADH released by the F. oxysporum fungus plays an important role in controlling the composition of the alloy nanoparticles.

References

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